#27417D
Closest named color: Twilight Blue (#0A437A). oklch(38.9% 0.107 264.4), rgb(39, 65, 125).
Aa
White text reads best on this color (9.81:1).
About this color
#27417D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.023 away. White text reads best on it, at 9.81:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.13:1 |
| White text | 9.81:1 |
Values
| HEX | #27417D |
| RGB | rgb(39, 65, 125) |
| HSL | hsl(222, 52%, 32%) |
| OKLCH | oklch(38.9% 0.107 264.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #27417D | 9.81:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #27417D | 2.13:1 | Fails | Lc 11.4 | Not readable |
| #27417D text on white | 9.81:1 | AAA | Lc 92.5 | Preferred for body text |
| #27417D text on black | 2.13:1 | Fails | Lc -9.9 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A7C1F5
oklch(81% 0.079 264)
-
Step 400
400
#789EF0
oklch(70.6% 0.128 264.5)
-
Step 500
500
#5684EB
oklch(63.1% 0.163 264.2)
-
Step 600
600
#3D6BDA
oklch(55.7% 0.178 264.4)
-
Step 700
700
#2F58BD
oklch(49.1% 0.166 264.4)
-
Step 800
800
#284999
oklch(42.8% 0.137 264.5)
-
Step 900
900 (this color)
#27417D
oklch(38.9% 0.107 264.4)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#27417D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #23487F | 0.020 |
| Deuteranopia (no green cones) | #12407C | 0.020 |
| Tritanopia (no blue cones) | #004F59 | 0.088 |
| Achromatopsia (no color) | #434343 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27417D
#27417D
oklch(38.9% 0.107 264.4)
- #584000
#584000
oklch(38.7% 0.079 84.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #27417D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.023
- Cobalt #1E488F ΔE 0.034
- Light Navy #155084 ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.054
- Marine Blue #01386A ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.056
- Blueberry #464196 ΔE 0.061
Use #27417D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.